9/7 in 4 (piano)

220px-Septimal_major_third_on_C

9 by 7 in 4

9/7 in 4 is a piano composition that takes the just interval 9/7 (a septimal major third ) and divides it by 4 – which results in a tuning very close to 11 notes per octave but with more JI “growl” possible which is heard several times in this recording.

Compare

! E:\cakewalk\scales\9by7in4.scl
!
septimal M3 in 4
4
!
108.77102
217.54205
326.31307
9/7 (435.1¢)

to 11 edo

109.09091
218.18182
327.27273
436.36364

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